Stitch length on pfaff expression 2036 gets shorter the longer I sew and when I shut down machine for 5 seconds it will usually go back to proper stitch length. What could cause this

Kelley Buchanan

• 130 Answers
• Posted on Apr 19, 2009

SOURCE: Consew Industrial Machine 2270 stitch length dial not working

Sounds like it is either out of time or the adjuster spring needs to be replaced.

SOURCE: Singer Touch Tronic 2001 Sewing Machine Stuck on Sewing Straight Stitch Only

I had a similar problem a couple of years ago. I finally figured out that I had the straight stitch needle plate (the one with the single hole), rather than the zig zag needle plate (the one with the curved hole). When I changed plates, it worked fine.

SOURCE: bernina 1080 stitch length and needle jumping problem

you will most likely find that just adjusting the stitch length and width controls for a while will correct the problem (if the machine has been sitting idle for some time the stepper motor linkages seem to stiffen up a bit but i have good success with continual adjustment until they free-up.

also try switching machine off and on again to ensure it resets correctly.

the combination of both above fixes works 95% of the time - otherwise, as you mentioned circuit board and or stepper motor replacement may be necessary (however if both length and width are playing up it is unlikely to be an electrical fault).

scott

SOURCE: Kenmore 2142 sewing machine won't zigzag.

Before you put the cam in did you make sure the machine was set on straight stitch and then select zig zag?

SOURCE: Pfaff 463 Industrial Sewing Machine needs Hook & Needle Re-Timing

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